"'Ornithologists concluded that migratory birds take hundreds of naps as they fly; they also practice unilateral eye closure, in which one eye closes, thereby permitting half the brain to sleep.' Is this what happens when photographers close one eye to look through a viewfinder? If so, they might be operating with only half a brain. Perhaps that explains."

Previous Quote

I seem to walk in the world as two people. The normal everyday-me is as preoccupied, unobservant and oblivious to visual clues as I ever was. Then there is the photographer-me, the one who has a camera in hand and a specific project in mind, and then the world suddenly jumps to life with potential pictures, as if a switch had been thrown in my brain and a different person is looking out of the same eyes.

— Bill Jay